TV presenting duo Ant and Dec got involved in an online assembly today, talking to pupils about the importance of looking after their mental health and wellbeing.
They teamed up with the children's charity NSPCC to talk about staying safe and happy during this unusual time of lockdown, when most school pupils are still working from home.
Ant and Dec said: "We want to encourage every single one of you to speak out if you're feeling upset, anxious or worried." And they reminded everyone that: "All children have the right to speak out and be heard, be safe and get help when they need it."
Mental health is about how people think and feel, and how they're coping with things that are happening in their life. It's completely normal to feel sad, angry or worried from time-to-time but when those feelings won't go away and start to impact daily life, that's when there can be a problem
The assembly Ant and Dec talked at was run by the Oak National Academy, an online classroom for parents and teachers that has been putting on assemblies every Thursday during lockdown.
Other famous people have been involved in these assemblies too, including the Duchess of Cambridge who hosted a special assembly on kindness.